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#saltr
/2024/08/03
~dr|z3d
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@T3s|4_
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@orignal
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Titlacahuan this is going to be hours of fun: github-roast.pages.dev
Titlacahuan sorry eyedeekay, had to roast you:
Titlacahuan Eyedeekay, or should I say, master of the meaningless hustle? You've got more repos than a bot on a sugar rush, yet your stargazer count is lower than your mom’s WiFi signal. Seriously, you’re into "making trivial activities enjoyable over anonymous networks"? Well, congratulations on being the king of creating pointless apps that nobody ever uses. Half your repos are "forked"—so basically, you
Titlacahuan 're a glorified copy-paster. Next time, try creating something original. Then again, with a handle like "idk", what more should anyone expect? Stay anonymous, champ—it's the only thing you’re good at.
dr|z3d Titlacahuan: you've been tolerated here for a while and seemingly kept your end of the bargain by not insulting or threatening anyone. To say you're welcome here would be a gross overstatement. Ad hoc insults directed at anyone, not least eyedeekay, cannot, will not, be tolerated. Sorry.
orignal zzz, I have got some new info
orignal an adversary is trying to recognize i2p traffic by number of new TCP/UDP connections per interval
orignal I thing we should add random variance to session timeout
zzz please explain more what the threat model is
orignal they measure number of new connections(probably TCP only) say per 10 minutes
orignal and see that's more of less unique for TCP vs. say torrents
zzz that seems like a pretty difficult way to do protocol identification. Have you seen some research about it?
orignal the ratinaly of this that we have constant session tiemout
orignal no, it's just rumor
orignal but do you think it doesn make sense if you see a p2p protocol measure connection pattern?
zzz in java we have a constant, but it's "sloppy" because we don't have a per-session timer, we have a single expiration job that runs periodically
zzz sure, p2p looks a lot different than client/server, but there's lots of p2p protocols
orignal say I see TCP connection trminatiing excatly after 120 seconds of inacctivity
orignal I would suppose it's i2p
zzz but it's not exact. see above.
orignal and if you see majority of TCP session terminting around this value
zzz looking at packet sizes would be a lot easier
orignal not exact but with relatively small deviation
orignal same in i2pd
zzz or just look at if it's both TCP and UDP. how many p2p protocols do both? probably not too many
orignal yes that;'s another possibility
orignal but constant termination timeout is too obvious
zzz your hypothetical network observer is very powerful to track packet interarrival times for a zillion IP pairs
orignal say they sit at ISP
orignal btw, in Russia they detect wiregaurd this way
orignal by measuring handshake intervals
zzz interesting. handshake timing/size sounds a lot easier than termination/timeout timing. have a link to any research?
orignal about wg?
zzz yes, detecting wireguard with handshake intervals
cumlord original did you make updates to i2cp?
cumlord i'm seeing 1MB/s on i2pd right now
orignal somewhere at habr
orignal yes I keep improving it
orignal that's the link
zzz thx
cumlord btw, this is the special character thing i'm seeing in snark, torrents made with mktorrent. think the issue could be from metata in .torrent file?
cumlord seems a lot better original, i2pd seems like it's keeping up with my i2p+ routers
zzz whats the issue?
cumlord in snark+ standalone, giving it a completed multi file torrent with .torrent file created with mktorrent
zzz oh and it can't find the Gra*ce files?
zzz Gr^ace
cumlord filename in question is "The 100 - S02E11 - Coup de Grâce Bluray 1080p HEVC DDP 5.1-SPANK.mkv" but i've seen it happen a couple other times with special chars. It doesn't recognize the filename and i think makes a socks file of the same name
zzz win or lin?
zzz UTF-8 locale presumably?
cumlord different behavior in embedded snark, before i've been able to get it to find by replacing with a "_"
zzz so it works in embedded?
zzz what is a "socks file"?
cumlord Actually no, it doesn’t work in embedded it just replaces with a “?”
cumlord Weird that was the workaround Ive used before
cumlord Sorry socket file
zzz plus or vanilla?
zzz we don't do socket files in java
zzz so if you go to the torrent dir do you see Gr^ace files or Gr_ce files or both, or what?
cumlord ah yes that’s not what that is, I see 2 files with the right chars, same name
cumlord Both as “ The 100 - S02E11 - Coup de Grâce Bluray 1080p HEVC DDP 5.1-SPANK.mkv”
zzz oh yeah duh that's in the screenshot
zzz so probably one has the ^a encoded differently from the other
zzz try something like ls *S02E11* | hd
zzz you started with mktorrent to create the .torrent file and passed it to snark?
cumlord ah that might be it i'll add the original file back and check that
zzz well there's a couple ways to fix it, but if you pick the wrong one, the leechers will have problems
zzz maybe
zzz if the original file name is not UTF-8 that's the issue
zzz so do ls *S02E11* | hd and paste here
zzz and then we'll figure out what's different and which one is which
cumlord yes all my torrents are made with mktorrent
cumlord the file snark likes shows up with "Gra..ce" with ls | hd
zzz paste here for both files and let's see
zzz need the hex
cumlord ah, if you need me to paste that in irc i can, client turns into pastebin if too many lines
zzz i got it
zzz so the first is c3 a2
zzz the second is 61 cc 82
cumlord ok i see what you're saying
cumlord if that's modified think it would bork leechers?
zzz c3 a2 is valid/correct UTF-8 en.wikipedia.org/wiki/%C3%82
zzz cc 82 seems to end up as a ^ after the 61 (a) that's a unicode combining character
zzz so they're BOTH valid UTF-8, but different
cumlord Thanks for looking, that’s strange
zzz so now, hd the torrent file and tell us which encoding it has in it
zzz that will tell us who is to blame
cumlord Sorry gtg for now be back to try that
zzz ok, I'll play around with it
zzz something is not surviving the round trip bytes->chars->bytes, the culprit is UTF-8 "normalization"
zzz quick test on both flavors seems like snark is happy with both and doesn't do any byte-changing, but not promising it's bug-free
eyedeekay zzz I'm going to squint at the implications of subDb's for this issue: git.idk.i2p/i2p-hackers/i2p.i2p/-/issues/487
eyedeekay *subDbs